Operation
24
In the case of measuring more than one conductor, there is another option named
PEN
available for selection.
When this option is selected, the
calculated
impedance of the PEN conductor and the
following values for a three-phase short-circuit (calculated in accordance with
IEC 60909-0) are displayed:
Depending on the type of network and earthing conditions, these values do not
necessarily match those of the neutral conductor!
For instance, in the case of a three-phase measurement on IT networks, the
three-phase short circuit current and the three-phase short circuit power are also
measured. However, no impedance values (incl. graphs) will be shown for the
non-existent PEN conductor.
Impedance of the PEN
conductor
Three-phase sustained short-circuit current
Three-phase sustained short-circuit power
Three-phase peak short-circuit current
Summary of Contents for NIM 1000
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